From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Tue, 1 Jun 2004 19:13:37 +0000 (+0000)
Subject: Add a check for a dirfd() function (like Linux) and add a dirfd
X-Git-Tag: SUDO_1_6_8~93
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=54cb0921dea0d82e409a5ddf316c9c6f0e750013;p=sudo

Add a check for a dirfd() function (like Linux) and add a dirfd
macro in compat.h if there is no dirfd() function or macro.
---

diff --git a/compat.h b/compat.h
index f6fb926e6..2d87cffc7 100644
--- a/compat.h
+++ b/compat.h
@@ -203,6 +203,13 @@ typedef struct sigaction sigaction_t;
 # endif
 #endif
 
+/*
+ * If dirfd() does not exists, hopefully dd_fd does.
+ */
+#if !defined(HAVE_DIRFD) && !defined(dirfd)
+# define dirfd(_d)	((_d)->dd_fd)
+#endif
+
 /*
  * If we lack getprogname(), emulate with __progname if possible.
  * Otherwise, add a prototype for use with our own getprogname.c.
diff --git a/config.h.in b/config.h.in
index 80778bd20..7e61baab3 100644
--- a/config.h.in
+++ b/config.h.in
@@ -75,6 +75,9 @@
    */
 #undef HAVE_DIRENT_H
 
+/* Define to 1 if you have the `dirfd' function (not macro). */
+#undef HAVE_DIRFD
+
 /* Define to 1 if you have the `dispcrypt' function. */
 #undef HAVE_DISPCRYPT
 
diff --git a/configure b/configure
index 4dcec3142..20c6b8ff7 100755
--- a/configure
+++ b/configure
@@ -26147,7 +26147,8 @@ _ACEOF
 
 
 
-for ac_func in strerror strcasecmp sigaction strlcpy strlcat closefrom
+
+for ac_func in strerror strcasecmp sigaction strlcpy strlcat closefrom dirfd
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
diff --git a/configure.in b/configure.in
index 234d7a31f..72b95ec6b 100644
--- a/configure.in
+++ b/configure.in
@@ -1705,7 +1705,7 @@ AC_CHECK_FUNCS(lsearch, , [AC_CHECK_LIB(compat, lsearch, AC_CHECK_HEADER(search.
 AC_CHECK_FUNCS(utime, [SUDO_FUNC_UTIME_POSIX], [AC_LIBOBJ(utime)])
 SUDO_FUNC_FNMATCH(AC_DEFINE(HAVE_FNMATCH, 1, [Define if you have the `fnmatch' function.]), AC_LIBOBJ(fnmatch))
 SUDO_FUNC_ISBLANK
-AC_REPLACE_FUNCS(strerror strcasecmp sigaction strlcpy strlcat closefrom)
+AC_REPLACE_FUNCS(strerror strcasecmp sigaction strlcpy strlcat closefrom dirfd)
 AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf, , [NEED_SNPRINTF=1])
 dnl
 dnl If NEED_SNPRINTF is set, add snprintf.c to LIBOBJS